Reenforcement-bar support



Abril 8, 1930. w. E. MATHEWS 1,753,523

REENFORCEMENT BAR SUPPORT Filed Nov, 17, 1928 In lien [or Vl/fflMa'zhezi/is' 67 AildrneyS Fatented Apr. 8, 1930 UNITED STATES WILLIAM E. MATHEWS, OF BIRMINGHAM, ALABAMA REENFORCEMENT-BAR SUPPORT Application filed November 17, 1928. Serial No. 320,180.

My invention relates to means for supporting reenforcement bars in the desired position while concrete is being poured.

An object of my invention is to provide a support which shall, by reason of the weight of the bars, automatically grip and hold the reenforcement bars in position.

Another object of my invention is to provide a support comprising two similar lengths of rod, each rod having an offset bend near its upper end which is adapted to interlock with a similar bend formed on its companion rod.

Another objectof my invention is to provide a support which aflords a three-point gripping contact with the reenforcement bar, thereby adapting it for use with any of the various forms of bars commonly in use.

A still further object of my invention is to provide such a support which is inexpensive, simple of design and whichwill not readily get out of order.

My invention comprises further novel features, and details of construction, as will be hereinafter set forth and shown in the accompanying drawings, wherein;

Fig. 1 is a side elevation of the supportshowing a reenforcement bar positionec thereon.

Fig. 2 is an end elevation thereof.

Having reference to the drawings forming a part of this application and in which similar numerals refer to similar parts throughout; I I

The support comprises similar lengths of rods 9 and 10, each of which is bent inwardly at 11 and 12 to form a U-shape having sides 13 and 14 which terminate in a loop portion 15. The loop portions 15 are then twisted to 7 an angle of substantially to the long axis 1 of the rods, and as both the loop portions are twisted in a similar direction the rods are similar throughout. 7

The rods 9 and 10 are then hooked together at their loop portions '15, as shown in Fig. l in the drawings, and the outer ends of the sides 13 and 14 are drawn together, thereby forming a permanent articulated engagement of the two. Those portions of the. rods 9 and 10 below the pivotal connections serve as legs and cause the arms 17, located above the said connection, to grip the reenforcement bar 18 firmly, due to the weight of the bar which tends to spread the said legs, thereby causing the said arms to move inwardly and secure the bar in position. This type of support bears against the reenforcement bar at three points, 19, 21 and 22, thereby effecting security against dislodgment of the support from its position and a support adapted for the many different shapes and sizes of bars used in the art to reenforce concrete structures. 4

From the foregoing description it will be apparent that I have devised an improved reenforcement bar support which is simple of design and economical of manufacture. The bending operations required may be readily carried out by automatic machines and the few parts render the device extremely simple to assemble.

While I have shown my invention in but one form, it will be obvious to those skilled in the art that itis not so limited, but is susceptible of various changes and modifications, without departing from the spirit thereof, and I desire, therefore, that only such limitations shall be placed thereupon as are imposed by'the prior art or as are specifically set forth in the appended claims.

hat I claim, is

1. ATeenforcement bar support comprising a pair of rods having U-shaped bends hooked together intermediate their ends to form a pivotal connection, said bends being turned at an angle to the long axis of the rods.

2. A reenforcement bar support 'compris inga pair ofrods having U-shaped bends hooked together intermediate their ends to form a pivotal connection, said bends being turned at an angle to the long axis of the rods, and drawn together in said rod to prevent disengagement while permitting articulation.

In testimony whereof I affix my signature.

WILLIAM MATHEWS. 

